verb (used with object), oversold, overselling.
more of (a stock, product, etc.) than can be delivered.
aggressively, as by using high-pressure merchandising techniques.
to emphasize the good points of excessively and to a self-defeating extent: She so oversold the picnic that I became convinced I'd have a better time at the movies.
verb (used without object), oversold, overselling.
to make extreme claims for something or someone.